润滑与密封
潤滑與密封
윤활여밀봉
LUBRICATION ENGINEERING
2015年
6期
90-94
,共5页
吕江%何立东%王晨阳%王锎%涂霆
呂江%何立東%王晨暘%王锎%塗霆
려강%하립동%왕신양%왕개%도정
汽轮机%轴端密封%蜂窝密封
汽輪機%軸耑密封%蜂窩密封
기륜궤%축단밀봉%봉와밀봉
steam turbine%shaft-end seal%honeycomb seal
蜂窝密封具有良好的密封性能,可以有效地减小泄漏量和提高转子的稳定性。针对某小功率汽轮机轴端密封泄漏严重问题,应用蜂窝密封对其高压端和低压端分别进行改造,并通过仿真分析和实际应用验证改造效果。改造结果表明,蜂窝密封有效地减少了蒸汽的泄漏量,降低了轴承润滑油的乳化程度,一定程度上抑制了转子的流体激振,降低了机组运行的噪声。
蜂窩密封具有良好的密封性能,可以有效地減小洩漏量和提高轉子的穩定性。針對某小功率汽輪機軸耑密封洩漏嚴重問題,應用蜂窩密封對其高壓耑和低壓耑分彆進行改造,併通過倣真分析和實際應用驗證改造效果。改造結果錶明,蜂窩密封有效地減少瞭蒸汽的洩漏量,降低瞭軸承潤滑油的乳化程度,一定程度上抑製瞭轉子的流體激振,降低瞭機組運行的譟聲。
봉와밀봉구유량호적밀봉성능,가이유효지감소설루량화제고전자적은정성。침대모소공솔기륜궤축단밀봉설루엄중문제,응용봉와밀봉대기고압단화저압단분별진행개조,병통과방진분석화실제응용험증개조효과。개조결과표명,봉와밀봉유효지감소료증기적설루량,강저료축승윤활유적유화정도,일정정도상억제료전자적류체격진,강저료궤조운행적조성。
Honeycomb seal has a good sealing performance,which can effectively reduce leakage of seal and improve the stability of the rotor.Aimed at the serious leak problem of low power steam turbine,honeycomb seal was used to reconstruct its low and high pressure ends.The effects of reconstruction were verified through simulation analysis and practical applica?tion.The results of reconstruction show that the honeycomb seal can reduce the amount of steam leakage and the extent of emulsification of the bearing lubricant effectively,can suppresses the excited vibration of rotor caused by the fluid and re?duce the noise of plant operation.